Fan guard



Mar. 20, 1923. 1,448,896 LE ROY S. YOUNG FAN GUARD Filed Jan. 5, 1922 Patented Mar. 20, 192.3.

UNITED STATES LE ROY S. YOUNG, OF LA FAYETTE, INDIANA,

WORKS, OF LA FAYETTE, INDIANA,

ASSIGNOR TO BARBEE WIRE AND IRON A CORPORATION OF INDIANA.

FAN GUARD.

Application filed January 5, 1922. Serial No. 527,081.

To of! whom. if rmcg (once-rm:

Be it known that I, Ln Ror S. YOUNG, a citizen of the United States, residing at La Fayette. in the county of Tippecanoe and State of Indiana. have invented certainnew and useful Improvements in Fan Guards, of which the following is a specification.

This invention relates to wire guards of the type commonly used on electric fans, so called solar heaters, and similar devices. wuards of this type usually consist of a series of radial arms or spokes attached at their inner ends to a central disk and at their outer ends to a circular rim; this lat ter in turn being supported by radial arms from the motor casing.

lVire fan guards of this kind are somewhat fragile, and are particularly liable to breakage in shipment, especially those wherein the inner ends of the spokes are electrically welded to the central disk. To

remedy this weakness, various structures wherein the inner ends of the spokes are mechanically fastened to the central disk have been proposed; but, in so far as I am aware, such mechanical fastening devices have proved more diflicult and expensive to make than the electrically welded construction and hence have considerably increased the cost of these guards.

The chief object of my present invention is to provide a. guard structure wherein the central disk is not only meehanicaly fastened to the inner ends of the spokes, but is much more strongly and securely fastened than is possible by spot welding, and wherein the construction involves less labor and cost than the common spot welding operation.

\Vith this and other objects and advantages in view, which will be apparent from the following detailed description. my invention consists of the improved fan guard, embodying the novel structural features typically illustrated in the drawing and more particularly pointed out in the claims.

Referring to the drawing Fig. 1 is a front elevation of my improved fan guard;

Fig. 2 is a cross section of the same on the line 22 of Fig. 1;

Fig. 3 is a face elevation of the central disk showing the same prepared to receive the inner ends of the spokes;

Fig. 4 is an enlarged sectional view showing a fragment of the disk, a pair of oppositely facing tongues struck outwardly therefrom and the inner end of a spoke inserted between said tongues preliminary to the pressing operation; and

Fig. 5 is a cross section similar to Fig. 4, showing the structure in its finished form wherein the tongues have been mashed down over the inner end of the spoke, widening and flattening the latter.

eferring to the drawing, 10 designates a round flat sheet metal disk, from the rear side of which is cut and punched outwardly a circular group of pairs of oppositely facing integral tongues 11. 12 designates each of a group of round wire spokes that radiate from the disk 10. The outer end portions 12' of these spokes are bent rearwardly and overlie crosswise a pair of front and rear circular rim members 13 and 14, these latter being preferably made of round wire as shown.

In assembling the parts, the inner ends of the spokes 12 are placed between the tongues 11 in the manner indicated in Fig. 4, and the assembly is then placed in a punch press and, at a single operation of the latter, the tongues 11 are mashed down onto the spokes 12 under heavy pressure, thereby very strongly and securely clamping the spokes against the face of the disk and locking them against separation. Preferably, and as herein indicated, the pressure is sufficient to flatten and spread the inner ends of the spokes as shown at 12 in Fig. 5,the free ends of the tongues 11 being similarly fiattened and spread over the spokes as indicated at 11 in Fig. 5.

The outer ends 12' of the spokes are electrically spot Welded to the rings 13 and 14 of the rim at the points indicated at 15 and 16 in Fig. 2.

The described structure involves the employment of no fastening devices other than the parts of the structure itself. is extremely strong, rigid and secure, and hence free from liability of breakage in shipment and use, and involves but a low cost of manufacture. The outer face of the disk 10, after the spokes have been attached thereto, may be covered by a suitable escutcheon plate. if desired, but I have not herein illustrated the latter as it forms no part of the present invention. The device shown and described may be varied in structural details, within the purview of the appended claims. without departing from the princ ple of the invention or sacrificing any of the advantages thereof.

I claim- 1. A fan guard, comprising a central disk having a circular group of pairs of oppositely fa ing integral tongues projecting from one face thereol', radial spokes at their inner ends clamped between the tongues of each pair respectively and the face of the :clisk, and an outer rim to which the outer ends of said spokes are attached.

2. A fan guard, comprising a central flat metal disk having a circular group of pairs of oppositely facing integral tongues pro jecting from the front face thereof, radial wire spokes at their inner endsclamped be tween the tongues of each pair respectively and the fare of the disk. and an outer rim to which the outer ends of said spokes are attached.

of pairs of oppositely facing integral tongues projecting from the front face thereofl radial round wire spokes having flattened and widened inner ends clamped between the tongues of each pair respectively and the face of the disk, and an outer rim to which the outer ends of said spokes are attached.

4:. A fan goal-1h roinprising' a central that metal disk having a circular roup of pairs of oppositely facing integra tongues projectingfrom one face thereof, radial spokes at their inner ends clamped by the tongues of each pair respectively against the face of said disk and an outer wire rim spot Welded to the outer ends of said spokes.

5. A fan guard. comprising a central flat metal disk having a circular group ol pairs of oppositely facing integral tongues projecting from one face thereof, radial round Wire spokes having flattened and widened inner ends clamped by the tongues of" each pair respectively against the tare of said disln and a pair of spaced front and rear wire rim mei'nhers to which the outer end portions of said spokes are spot Welded.

LE ROY S. YOUNG. 

